The invention discloses a processing method of shale refracturing. The processing method of shale refracturing comprises the steps that shale samples are subjected to initial fracturing and secondaryfracturing, tracks are displayed with different colors, and hydraulic fracture forms is analyzed after two-time fracturing, intuitive interference characteristics of the two fracturing fracture formsafter shale refracturing can be obtained; and in addition, the steering characteristics of initial fracturing fractures of the shale samples under the action of temporary plugging agents are analyzed,the characteristics of initial fracturing pump pressure curves of the shale samples and secondary fracturing pump pressure curves of the first shale sample are analyzed, support for a shale reservoirrefracturing well technological parameter design is provided, and the processing method is of great significance for reactivating shale oil and gas wells which are abandoned or are about to be abandoned. The processing method can be used not only for physical simulation of refracturing shale gas reservoir rock mass, but also for other dense reservoir rock mass, and improves the applicability.